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' PATENTED MAR. 10, 1868.

G: F. WILSON. I APPARATUS FOR CONVEYING ACID PHOSPHATBS' AND OTHER ACIDLIQUIDS.

2 SHEETS-SHEET 1.

WITNESSES.

INvENTM.

No. 75,335. PATENTED MAR. 10, 1868.

G. P..WILSON. APPARATUS FOR CONVEYING ACID PHOSPHATBS AND OTHER ACIDLIQUIDS.

2 SHEETS-SHEET 2.

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GEORGE F. WILSON, or EAST PROVIDENCE, REPODE ISLAND.

Letters Patent No. 75,335, dated March 10, 1868.

IMPROVEMENT IN APPARATUS FOR CONVEYING AGID PHOSPHATES AND OTHER ACIDLIQUIDS.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, GEORGE F. WILSON, of East Providence, in the countyof Providence, and State of Rhode Island, have invented a. new andimproved Mode o f Conveying Phosphoric Acid Liquor withoutdeterioration; and I do hereby declare that the following is a full andexact description thereof, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon.

The object of my invention is to provide for the rapid and economicaltransfer, in large quantities, of acid liquor, without acquisition ofimpurity from the tanks in which it is received, from the leeches to thedistributingreservoir, or to other receptacles where it is required tobe used.

In my early attempts to move the acidliquor, a common ships pump andwooden troughs or rigid pipes were employed, but with the expansion ofthe manufacture this became inadequate. Pumps operated by power wererequired. The corrosion of the ordinary leatherund brass valves was sorapid as to rendertheui irregular and leaky, and useless after shortservice. The necessity. of drawing liquor from different tanks, led tothe use of suction hose, and this led to the use of hose fordistribution, so thnt the whole pumping and distribution of acid liquorwere accomplished byone fixed pump, one suction-hose, and one flexibledistribution-pipe. The hose first employed was of leather, secured bybrass and copper rivets, butthe corrosive aobiorrot'the acid soonrendered them useless. After manycxpcrirncnts, I i'ound that 1 was ableto transfer this acid liquor by the use of pumps consisting of leadcylinders, with vulcanized elastic spherical rubber or gntta-pe-rchnvalves, and the'hoscof vulcanized rubber or gutta percha.

The essential parts of my pump are shown in the accompanying drawings,fig. 1 andfig. 2. It is constructed wholly of lead, except the flangesand their fastenings, and the piston-rod, which may be made of brass,and the valves to be presently described.

Figure 1 represents the form of an ordinary double-action pump, thearrangement enrlaction of piston and valvesbeing the same as those inthe ordinary double-action pump.

My improvement consists in the application of vulcanized gutta-peroha orrubber valyes to pumps, made,

as above described, of lead.

Figure 2 illustrates the construction and arrangement of valves, whichclose when the pressure is down wards,-as at x, fig. 1.

A,fig. 2, represents a part of the pipe; 13 B, one of the flanges; G,the globular vulcanized rubber or guttepercha. valve sitting upon itsseat, and closing the aperture of the flange at B B. C (i-representlcaden straps, which limit the distance to which the valve G may beraised from its seat 13 B, the action oi the valv'e in stopping orpermitting the passage of liquid being the same as thatoi' ordinaryvalves in the same situation.

Figure 3 shows the application of the vulcanized gutta-pcrcha or rubberhose 7th to the pump P, for the transfer of acid phosphate liquor fromthe tanks B B and C G, leached from the leeches A and A, to thercservoir D, where the products of several-leeches may be mingled, andrendered of uniform specific gravity.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is-- 1. My improved pump, constructed of lead and vulcanizedrubber or gotta perchs, substantially as and for the purpose abovespecified.

2. Also the application of vulcanized rubber or gutta-percha hose, incombination with the above-described pump, for the transfer of acidphosphate-of-lime liquor, for the purpose above set forth.

GEO. F. WILSON.

Witnesses WILLIAM Hsnon, E. N. Honsronn.

